168278740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{171713}}^1$

素因数の和:171736

約数の個数: 36

約数和(自身を含む): 411083316

約数和(自身を除く): 242804576

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 171713, 343426, 686852, 858565, 1201991, 1717130, 2403982, 3434260, 4807964, 6009955, 8413937, 12019910, 16827874, 24039820, 33655748, 42069685, 84139370, 168278740]

約数ペア:

[(1, 168278740), (2, 84139370), (4, 42069685), (5, 33655748), (7, 24039820), (10, 16827874), (14, 12019910), (20, 8413937), (28, 6009955), (35, 4807964), (49, 3434260), (70, 2403982), (98, 1717130), (140, 1201991), (196, 858565), (245, 686852), (490, 343426), (980, 171713)]